* sobre la marcha = on-the-fly, off the top of + Posesivo + head, right off the bat, spur-of-the-moment, on the spur of the moment, while-you-wait [while-u-wait], straight away, as you go, right away, at once.

* ponerse en marcha= set off, get off + the ground, swing into + action.

* puesta en marcha= implementation, startup [start-up].

* salir de marcha= paint + the town red, party, go out on + the town.

* seguir la marcha de= monitor.

* sobre la marcha= on-the-fly, off the top of + Posesivo + head, right off the bat, spur-of-the-moment, on the spur of the moment, while-you-wait [while-u-wait], straight away, as you go, right away, at once.